I have an 850 in an atlas frame. The motor is very hard to kick over and I am wondering if perhaps the belt drive is contributing. Possibly from the pulley dimensions? Just a theory. I have installed the MK3 kickstart lever which helped slightly. Everything turns freely. anybody run into this when installing the RGM belt drive? It is a good unit and no problems with it I am just wondering if it requires a bit more force to kick it over.